Contributor Institution:
Herbarium, Quaid-i-Azam University, Islamabad. (Now at the University of Tripoli, Libya.)

General/Distribution:
A largely tropical or a sub-tropical family of some 90 genera and about 1,000 species. Represented in Pakistan by 4 genera and 10 species.

Comment/Acknowledgements:Acknowledgements: We are grateful to the United States Department of Agriculture for financing this research under P.L. 480 and to Messrs. B.L. Burtt, I.C. Hedge and Miss J. Lamond of the Royal Botanic Garden, Edinburgh for giving valuable suggestions.